Distributer for internal-combustion engines.



A. BALLOCO. TER FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED SEPT. 11, 1911.

DISTRIBU Patented N0v.v17, 1914.

UNITED STATES PATEN T OFETCE.

. ALBERTO BALLOCO, OF TUBIN, ITALY, ASSIGNOR T0 ITALA FABBRICA DI AUTOMOBILI,

OF TURIN, ITALY.

DISTRIBUTER FOR To alt whom it may concern Be it known that I, ALBERTO BALLOCO, a subject of the King of Italy, and residing at Turin, Italy, have invented certain new and useful Improvements in Distributers for Internal-Combustion Engines, of which the following is a specification.

This invention relates to rotary distributers for internal engines and more particularly to a distributer cooled internally by the circulation of water. In the accompanying drawing is shown, by way of example, a construction according to the invention.

Figure 1 is a section on line w-w of Fig. 2, and represents two coupled cylinders to which the new type of rotary distributer is applied. Fig. 2 is a vertical section on a plane passing through the axis of one of the cylinders and the distributer.

As will be seen from the drawings the distributer 1 consists of a cylindrical body mounted so as,to turn on its axis in a chamber 2 adjacent to the engine cylinders this rotation being transmitted to the body by the shaft 3 driven from the motor shaft at the desired relative speed. The chamber 2 is in communication with the ends of the cylinders through ports 4 and 5 and the distributer has two channels 6 and 7 communicating respectively with the admission pipe 8 and with the exhaust pipe 9. The channel 6 extends for a portion of its length axially into the distributer and then it is bifurcated into two channels leading to diametrically opposite points so as to form in the cylindrical wall of thedistributer two openings intended to register with the ports 4 and 5 of the cylinders when the admission commences. Similarly, the channel? is composed of two branches leading to diametrically opposite points, the openings formed being intended to register with the ports 4 and 5 of the cylinders when exhaust commences. The two branches of the channel 7 extend upward and are reunited in a chamber arranged at the upper part of the distributer and which is always in communication with the exhaust pipe 9. These channels are formed on the interior of the distributer by walls cast with the body of the distributer. Between the walls of these channels and the outer cylindrical wall of the distributer there is a space surrounding the various pipes and forming a channel Specification of Letters Patent.

again to the top on INTERNAL-COMBUSTION ENGINES.

Patented Nov. 17, 1914. Serial No. 648,504.

which commences at the upper part of the distributer, descends to the bottom and rises the opposite side to passv out axially relatively to the distributer. Into this pipe water is introduced by means of a pipe 10 entering axially and by reason of the vertical arrangement of the distributer the water introduced from above may circulate spontaneously on account of the difference of temperature and rise again in the body of the distributer, passing off through the pipe 11 (see the arrows in Fig. 2).

In the case shown in the drawings, the

engine being a four-stroke cycle engine, the i distributer turns at a speed equal to one fourth of that of the engine so that each channel, both the admission channels 6 and the exhaust channels 7. which have two opposite ports, successively register with the ports of the coupled cylinders being at an angular distance from each other of 45". It

is also possible by modifying the ratio of transmission between the engine shaft and the shaft 3 of the distributing channels, it only being necessary that they shall register with the port of the cylinder at the moment when the corresponding phase begins in that cylinder.

For the purpose of balancing, during'the compression and explosion periods, the pres sure on the wall of the distributer which closes the port 4 or 5 of the corresponding cylinder, there chamber 2, two small cavities 1213 oppd site the ports of the cylinders. At the moment of compression and explosion there opens opposite these cavities the passage 14 which extends through the distributer so as to form communication between one or other of the said cavities and the corresponding cylinder at the required moment. manner the distributer is subjected to the pressure existing in the cylinder at two points diametrically opposite each other so. that the operation will not be prejudiced by the friction between the walls of the distributer and of the chamber, caused by the pressure of the gases in the cylinder acting in the distributer at'oppositepoints. The tightness of the distributer is secured by elastic rings 15. By this mode of distribution there is obtained bymeans of a single member both the admission of the combusto increase the number of ports are made in the wall of the In this tible mixture and the exhaust for two or more cylinders under conditions such that the distributer is balanced and cooled by the 011'- culating water.

l/Vhat I claim as my invention and desire to secure by United StatesLetters Patent ls l 1. In a valve for internal combustion engines, the combination of a chamber communicating with the engine cylinders; a distributer in said chamber, rotatable about a vertical axis and provided'with a channel passing therethrough and a channel for the cooling water, the last named channel commencing axially from above and descending nearly to the bottom-and risingagain to the discharge; and means for conducting the water to and from said named channel.

2. In a valve for internal combustion engines, the combination of a chamber, communicating with the engine cylinders; a

distributer in said chamber and rotating about a vertical axis; and provided with a channel passing therethrough for the hot gases,- and achannel for the cooling water medium through the surrounding the channel for the gases in such a manner that water introduced from. spontaneously to the bottonci above descends of the valve and then rises to the top; admission and exhaust pipes tributer.

3. In a valve for internal combustion engines, the combination with the cylinders, of a chamber into which the ports of the cylinders open at diametrically opposite points; a distributer in said valve and rotatable about a verticalaxis and provided with a channel passing having branching upper end adapted to register with said ports for the purpose of for the dis- 5 therethrough and equalizing the pressure on-the walls of the cylinder during the compression and explosion; and means distributer.

In testimony whereof I affix my signature in presence of two witnesses.

' ALBERTO BALLOCO.

Witnesses:

JooELYN SoUBEYRoN, CARLO TORTA Ins.

for conducting cooling 

